Prove this theorem indirectly.

Assume you know that the sum of the angles of a triangle equals 180° and a right angle =

90°. Prove that a triangle cannot have two right angles.

Question

Mathematics

Regina Gentry

14 May, 19:15

Prove this theorem indirectly.

Assume you know that the sum of the angles of a triangle equals 180° and a right angle =

90°. Prove that a triangle cannot have two right angles.

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Answers (1)

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Bianca Garner · Answer 1

Triangles have three sides. Of which, the angles inside add up to 180°. Now if two angles were 90° there would be no third angle. Meaning this object would just be an open shape.

Prove this theorem indirectly.Assume you know that the sum of the angles of a triangle equals 180° and a right angle =90°. Prove that a triangle cannot have two right angles.

Prove this theorem indirectly.

Assume you know that the sum of the angles of a triangle equals 180° and a right angle =

90°. Prove that a triangle cannot have two right angles.